Axial Piston Variable Pump LMA4VTG (A4VTG) for mobile concrete mixers

Hanjiu Technology provide Piston hydraulic pumps for construction equipments.

LMA4VTG replace Rexroth A4VTG

Sunny A4VTG90 Rexroth Hydraulic piston Pump

A4VTG90 close circuit variable displacement piston pumps

The inner donkey pump of this pump can oil and control oil source, the inlet/outlet of this pump can connect with two check relief valves which is inside of pump ,and it ensures system never overload , operated directional stably , no concussion , with maximum displacement adjustable system, this pump applied to drive mixing cylinder of concrete transport truck and closed circuit hydraulic system widely.

Specifications:

- High pressure pump for the drum drive in mobile concrete mixers

- Size 5 … 90

- Nominal pressure 400 bar

- Maximum pressure 450 bar

- Closed circuit

Table of values

Features:

- Swashplate design Axial variable plunger pump for hydrostatic transmission in a closed circuit.
- The flow is proportional to the drive speed and displacement.
- As the swash plate angle increases from zero to its maximum value, the flow increases proportionally.
- When the swash plate passes through the neutral position, the hydraulic oil flow direction changes smoothly.
- Two pressure relief valves are fitted to the high pressure port to prevent overloading of the hydrostatic drive (pump and motor).
- The high pressure relief valve can also be used as a charge check valve.
- Built-in charge pump rushes current oil pump and controls variable use.

- Optional with coupling flange for direct cardan shaft drive

- Integrated boost pump for boost and pilot oil supply

- Flow direction changes smoothly when the swashplate is moved through the neutral position

- High-pressure relief valves with integrated boost function

- Boost-pressure relief valve

- Through drive for mounting of secondary pumps

- Swashplate design

Shijiazhuang Hanjiu Technology Co.,ltd. is a professional manufacturer of industrial hydraulic components, located in China - Hebei City. Since 1995, Hanjiu focused on the development and production of full series of hydraulic components, orbit motors, steering orbitrols, directional control valves.

Our products include: GEROLER and GEROTOR motors, hydraulic steering units, directional control valves. More than 50 series, 2000 types. Personalized products and services to provide customers with a significant advantage. Due to the high quality of our products and reliable performance, they are widely used in mobile, industrial, fluid power, dynamic, agricultural, construction, marine, automation, transport, sanitary, etc.

Hanjiu Technology brings together the world's top professional talent and technology, has a highly qualified international personnel. Set from software development to hardware design, system testing, technical services are completed by professional and technical personnel. We have R & D base in Hebei, well-known institutions of higher learning and research institutions at home and abroad, work closely with national patent applications for 63, a number of the core technological achievements and technical indicators at the international advanced level.

To ensure the quality and stability of the machine, we use the most advanced production and testing equipment to check the quality and performance of our hydraulic motors and steering units and valves in each production step to ensure our hydraulic components perfect quality and stable performance.

We provide customers with affordable, high-quality hydraulic components. In order to achieve the advantages of Asia, the full benefit in terms of quality and cost, procurement of key machine from Germany, and the production and manufacturing in China. We have the best supply chain in China and parts manufacturers, and a solid record of quality and innovation, to prove that our 20+-year performance of the hydraulic components

Quality product performance and good reputation, our products are not only successful sales in China, and have been exported to more than 120 countries and regions in the world, including: Germany, Japan, Italy, Spain, Poland, Russia, Belarus, South Korea, Turkey, Egypt, Brazil, Argentina, Chile, India, Australia, the United Arab Emirates, Saudi Arabia, USA, Mexico and other countries, the products are subject to a great welcome and praise.

Our goal is simple: to sell the best hydraulic motors, steering units, valves, components at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business is Perfect Hydraulics, to help others achieve their goals.

For more detailed information on our hydraulic components, please do not hesitate to contact us! We welcome your inquiries, and look forward to working with you.